Please show solutions.

1. Find the simple interest and final amount due in investing 10,000 at a simple interest rate of 5% for 60 days.
2. A man invested 60,000 in time deposit on February 12, 2019 and got an amount of 60,648 on the maturity date at the rate of 6.75% per annum. What was the maturity due of the placement?
3. Mrs. Hernandez invested 20,000 which accumulates to 22,500 in 10 months. Find the simple interest rate?
4. If money is worth 9% simple interest, find the original amount borrowed of 2,500 at the end of 1 years.

5. Find the number of days between April 9, 2020 to March 18,2021., using approximate and actual number of days.